Galaxy S4 display was tested by Displaymate[1] and even in the most accurate calibration mode (Movie Mode), it is still significantly less accurate DisplayMate

Galaxy S4 display was tested by Displaymate[1] and even in the most accurate calibration mode (Movie Mode), it is still significantly less accurate DisplayMate had significant criticism of the GS2s screen. They had some criticism of the GS3 screen. They call the GS4 screen excellent, giving it the same A score as the iPhone 5s screen. Add that the GS4 screen has 3X more detail and infinitely more contrast than the iPhone 5, and it seems to be embracing a talking point to focus specifically on the color gamut (especially given that subjectively most users actually prefer it, so unless you're a graphic artist doing color matching...).